As more Swedish households switch to energy-saving LED lights some experts are worried about the health affects caused by invisible flickering in the poorly constructed bulbs, newspaper Dagens Nyheter reports.

Swedish Foreign Minister Margot Wallström slammed Russia in an op-ed on Saturday for its annexation of Crimea saying the move "blatantly violates the principles" of the Helsinki accords, a political compromise signed 40 years ago between Soviet and western powers.